
Korosi
Authored by Woro Puspawati
Chemistry
12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Faktor factor yang berasal dari lingkungan berikut ini dapat mempengaruhi korosi kecuali . .
Suhu
Udara
Keasaman
Kelembapan
Struktur Bahan
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam yang dapat mencegah korosi pada bumper mobil adalah …
Kromium
Magnesium
Timbal
Timah
Nikel
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini adalah faktor-faktor yang dapat mempercepat terjadinya korosi, kecuali …
Banyaknya uap air disekitar logam
Bersinggungan langsung dengan udara
Banyaknya oksigen disekitar logam
Banyak terdapat uap asam disekitar logam
Disekitar logam tidak ada oksigen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logam berikut yang dapat mencegah korosi pipa besi yang ditanam di dalam tanah adalah
Cu
Sn
Pb
Mg
Co
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beberapa metode pencegahan korosi besi :
(1) Mengecat
(2) Melumuri dengan oli
(3) Dibalut dengan plastik
(4) Perlindungan katodik
(5) Galvanisasi
Metode yang paling tepat digunakan untuk melindungi pipa besi yang ada di dalam tanah adalah
1
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Di daerah industri, gas-gas yang dapat menyebabkan korosi adalah …
O2 dan N2
CO dan H2O
CO dan N2
.SO2 dan NO2
CO2 dan CO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prinsip pencegahan korosi dengan perlindungan katodik adalah …
Logam di katode harus memiliki potensial reduksi lebih besar daripada logam di anode
Bahan yang dilindungi harus diletakkan di anode
Logam di katode harus mudah dioksiasi
Logam di anode harus mudah direduksi
Tidak perlu ada larutan elekrolit
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